Due to open sometime in 2014, this $1.08bn (USD) children's hospital in Brisbane, Australia has been inspired by a "living tree," with the various wooden windows jutting out like treehouses sat on branches.

Once it's finished in four years' time, the hospital will contain 359 beds and is just bright and cheery-looking enough that it should help lessen the trauma of the kids who are cooped up inside. [Lyons and Conrad Gargett via DesignBoom]